航海装备板块8月29日涨0.81%，中科海讯领涨，主力资金净流入1.54亿元

Market Overview - The marine equipment sector increased by 0.81% on August 29, with Zhongke Haixun leading the gains [1] - The Shanghai Composite Index closed at 3857.93, up 0.37%, while the Shenzhen Component Index closed at 12696.15, up 0.99% [1] Stock Performance - Notable stock performances include: - Yihard Technology (300810) rose by 4.29% to a closing price of 53.94 [1] - Guorui Technology (300600) increased by 3.71% to 19.27 [1] - China Shipbuilding (600150) saw a 1.52% rise, closing at 37.38 [1] - Hailanxin (300065) and China Ship Defense (600685) had smaller increases of 1.15% and 0.61%, respectively [1] - Tianhai Defense (300008) and Jianglong Shipbuilding (300589) experienced slight declines of 0.13% and 0.48% [1] Capital Flow - The marine equipment sector had a net inflow of 154 million yuan from institutional investors, while retail investors saw a net outflow of 144 million yuan [1] - Detailed capital flow for key stocks includes: - China Shipbuilding had a net inflow of 91.36 million yuan from institutional investors [2] - Zhongke Haixun attracted 70.05 million yuan, but retail investors withdrew 83.70 million yuan [2] - Guorui Technology had a net inflow of 19.56 million yuan from institutions, with retail investors withdrawing 18.39 million yuan [2] - China Haifang (600764) saw a net inflow of 6.61 million yuan from institutions, while retail investors withdrew 17.53 million yuan [2]